Description

Long weld neck flange is manufactured in accordance with ASME B16.5 standard.
It features an elongated tapered neck, the pipe is butt‑welded to the neck end. Long neck reduces stress concentration, improves structural strength for harsh working conditions.
Material options include A105 carbon steel, 304 and 316L stainless steel. Strict heat treatment and non‑destructive testing can be provided upon request.
Widely applied on critical process pipelines of petrochemical, natural gas and power‑generation industries for high‑pressure and high‑temperature media.
Full range of sizes and pressure classes in stock, custom dimensions supported.